package com.xinzhidi.common.utils;

import org.apache.commons.lang3.time.DateFormatUtils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static final String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 获取当前时间 yyy-MM-dd HH:mm:ss
     */
    public static final Long getTotalTime() {
        return System.currentTimeMillis();
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算时间差
     *
     * @param endTime   最后时间
     * @param startTime 开始时间
     * @return 时间差（天/小时/分钟）
     */
    public static String timeDistance(Date endDate, Date startTime) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startTime.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 将时间戳转换为时间
     *
     * @param s 时间戳
     * @param t 时间
     * @return
     */
    public static String stampToDate(String s, String t) {
//        String res;
//        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(t);
//        Date date = new Date((Long.parseLong(s) * 1000));
//        res = simpleDateFormat.format(date);
        SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        //将时间转换指定格式的日期
        String date=f.format(Long.valueOf(s));
        return date;
    }

    public static Date dateAdd(Date date, int day){
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.DATE, 1);
        date = c.getTime();
        return date;
    }


    public static LocalDateTime LocalDateTimeToDate(Date d){
        ZoneId defaultZoneId = ZoneId.systemDefault();
        LocalDateTime dateTime = LocalDateTime.ofInstant(d.toInstant(), defaultZoneId);
        return dateTime;
    }

    public static Date calculateAverageDate(List<Date> dateList) {
        if (dateList == null || dateList.isEmpty()) {
            return null;
        }

        long totalMilliseconds = 0;

        for (Date d : dateList) {
            totalMilliseconds += d.getTime(); // 将日期转换为时间戳并累加
        }

        long averageMilliseconds = totalMilliseconds / dateList.size();

        return new Date(averageMilliseconds); // 将平均时间戳转换回日期
    }

    public static void main(String[] args) {
//        // 创建一个包含多个日期时间的列表
//        List<Date> dateList = new ArrayList<>();
//        dateList.add(new Date()); // 添加日期时间1
//        dateList.add(dateAdd(new Date() , 3)); // 添加日期时间2
//        // 添加更多日期时间
//
//        // 计算平均日期时间
//        Date averageDate = calculateAverageDate(dateList);
//
//        System.out.println("平均日期时间: " + averageDate);
        System.out.println(getPointTime(null));
    }


    public static String getPointTime(Integer everyHour){
        LocalDateTime currentDateTime;
        currentDateTime = LocalDateTime.now();
        if(everyHour != null){
            currentDateTime = currentDateTime.plusHours(everyHour);
        }

        LocalDateTime currentHourTime = currentDateTime.withMinute(0).withSecond(0).withNano(0);
        return currentHourTime.toString();
    }


}
